I am totally against dissing anyone. This site is about cars, right, not Charelene Blake.
Truth on the Toyota sludge generation autos can be found at several sites. Try these on for size:
http://www.autosafety.org - Look through the complaints filed for the Sienna, Camry, Avalon, Highlander, Lexus models and you will find plenty about this sludge problem. They also have some info on the Toyota sludge program in general along with the more recent VW sludge problem. The Toyota info includes the Auto News article that broke the story in 2002 and the letter than Toyota says they mailed to 3 million owners of the subject models (did you get one? I sure didn't)
http://www.thecomplaintstation.com - go to "T" then Toyota and read through two discussions - one on Experts Opinions on Engine Sludge and one on Recent Sludge Complaints. These are pretty telling.
http://www.yotarepair.com - this site even has a "Sludge Zone"
http://autos.msn.com - read the ratings from the aftermarket auto repair industry (go to top left of screen and plug in make and model, then go to ratings and reliability tab) - all the of the sludge vintage models are listed as having ***significant*** engine problems